251. Реши уравнения. 540 : x = 380 : 19 x * 6 = 18 000 + 24 3 480 - x = 2 190 : 3 x + 2 010 = 3 001 * 4

Решение: 1) \(540 : x = 380 : 19\) \(540 : x = 20\) \(x = 540 : 20\) \(x = 27\) 2) \(x \cdot 6 = 18000 + 24\) \(x \cdot 6 = 18024\) \(x = 18024 : 6\) \(x = 3004\) 3) \(3480 - x = 2190 : 3\) \(3480 - x = 730\) \(x = 3480 - 730\) \(x = 2750\) 4) \(x + 2010 = 3001 \cdot 4\) \(x + 2010 = 12004\) \(x = 12004 - 2010\) \(x = 9994\)